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MABS1183 Anti-Periostin Antibody, clone 5B2.3

MABS1183
100 μg  
Purchase on Sigma-Aldrich

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Species ReactivityKey ApplicationsHostFormatAntibody Type
HWB, IH(P)MPurifiedMonoclonal Antibody
Description
Catalogue NumberMABS1183
DescriptionAnti-Periostin Antibody, clone 5B2.3
Alternate Names
  • Periostin
  • OSF-2
  • Osteoblast-specific factor 2
  • PN
Background InformationPeriostin (UniProt Q15063; also known as OSF-2, Osteoblast-specific factor 2, PN) is encoded by the POSTN (also known as PSF2) gene (Gene ID 10631) in human. Periostin is an extracellular matrix (ECM) protein predominantly expressed in collagen-rich fibrous connective tissues, including heart valves, tendons, perichondrium, periosteum, and periodontal ligament (PDL). Periostin plays an essential role in the process of remodeling during tissue/organ development/repair and inflammation. Periostin derived from fibroblasts is shown to induce keratinocytes differentiation and proliferation. Periostin is a mediator for epidermal hyperplasia and is highly expressed in the dermis of both atopic dermatitis (AD) and psoriasis patients. Periostin level is also reported to be upregulated in patients with acute or chronic hepatitis and correlates well with serum TGF- 1 and TGF- 2 levels. The PDL-POSTN spliced isoform is predominantly expressed in PDL, it binds integrin v 3 with a higher affinity and induces strong activation of the integrin v 3-focal adhesion kinase (FAK) signaling pathway. Periostin is produced with a signal peptide (a.a. 1-21), the removal of which yields the mature protein with an N-terminal cysteine-rich EMI (a.a. 40-94) domain and four asciclin I or FAS1 domains (a.a. 97-230, 234-365, 368-492, 496-628). Alternative splicing generate several C-terminal domain variants with tissue-specific expression patterns.
References
Product Information
FormatPurified
PresentationPurified mouse monoclonal antibody IgG2a in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Quality LevelMQ100
Applications
ApplicationDetect Periostin using this mouse monoclonal Anti-Periostin, clone 5B2.3, Cat. No. MABS1183, validated for use in Immunohistochemistry (Paraffin) and Western Blotting.
Key Applications
  • Western Blotting
  • Immunohistochemistry (Paraffin)
Application NotesImmunohistochemistry Analysis: A 1:50 dilution from a representative lot detected periostin in human prostate cancer, breast and small intestine tissue sections.
Biological Information
ImmunogenGST-tagged recombinant human periostin C-terminal fragment.
Clone5B2.3
ConcentrationPlease refer to lot specific datasheet.
HostMouse
SpecificityClone 5B2.3 epitope lies within a region C-terminal to the FAS1 domains. Immunogen covered region is 100% present in isoforms 1 (OSF-2OS), 2 (OSF-2p1), and 5, but partially missing in spliced isoforms 3, 4 (PDL-POSTN), 6, and 7. Clone 5B2.3 immunoreactivity toward these latter isoforms is possible, but has not been confirmed.
IsotypeIgG2aκ
Species Reactivity
  • Human
Antibody TypeMonoclonal Antibody
Entrez Gene Number
Gene Symbol
  • POSTN
  • OSF2
Purification MethodProtein G purified.
UniProt Number
Molecular Weight~78-93 kDa observed. The broad band appearance is consistent with the detetion of differentially glycosylated species of one or more spliced isoforms. 90.96/87.021/84.67/81.50/88.07/81.17/78.00 kDa (mature isoform 1/2/3/4/5/6/7) and 93.31/87.02/87.25/83.85/90.42/83.53/80.36 kDa (isoform 1/2/3/4/5/6/7 pro-form) calculated. Uncharacterized bands may be observed in some lysate(s).
Physicochemical Information
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Quality AssuranceEvaluated by Western Blotting in human stomach tissue lysate.

Western Blotting Analysis: 0.5 µg/mL of this antibody detected periostin in 10 µg of human stomach tissue lysate.
Usage Statement
  • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Storage and Shipping Information
Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
Packaging Information
Material Size100 μg
Transport Information
Supplemental Information
Specifications
Global Trade Item Number
Numero di catalogo GTIN
MABS1183 04054839055041